Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
Hull, MA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:46AMSunset 7:37PM Tuesday April 24, 2018 8:29 AM EDT (12:29 UTC) Moonrise 1:47PMMoonset 3:10AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ230 Boston Harbor- 716 Am Edt Tue Apr 24 2018
Today..SW winds 5 to 10 kt, becoming S 10 to 15 kt this afternoon. Gusts up to 20 kt. Waves 1 foot or less.
Tonight..S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 foot or less. A chance of rain.
Wed..SE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog. Rain. Vsby 1 nm or less.
Wed night..SE winds 10 to 15 kt with gusts up to 20 kt, becoming S 5 to 10 kt after midnight. Waves around 2 ft. Areas of fog. Rain. Vsby 1 nm or less.
Thu..SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Patchy fog. A chance of showers.
Thu night..W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft.
Fri..SW winds 5 to 10 kt. Waves around 2 ft.
Fri night..SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers.
Sat..SW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft.
Sat night..W winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 716 Am Edt Tue Apr 24 2018
Synopsis for massachusetts and rhode island coastal waters.. High pressure will shift east of the waters today. Low pressure will move up the eastern seaboard late tonight and Wednesday bringing areas of rain and isolated Thunderstorms, moving to the gulf of maine by midday Thursday. Another low will across the waters Friday night into Saturday morning. High pressure will build in from the west late Saturday and Sunday. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.

7 Day Forecast for Marine Location Near Hull, MA
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location: 42.32, -70.92     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 241107
afdbox
area forecast discussion
national weather service boston norton ma
707 am edt Tue apr 24 2018

Synopsis
High pressure in control today will result in plenty of
sunshine and another mild afternoon. Low pressure approaching
from the southwest will bring a soaking rain to the region very
late tonight and Wednesday with localized heavy downpours. This
may result in some brief nuisance poor drainage street flooding.

Seasonable temperatures follow Thursday through Saturday with
mainly dry weather other than a few brief showers possible. A
brief cool down expected on Sunday, but this will be short lived
as unseasonably warm temperatures are possible by the middle of
next week.

Near term until 6 pm this evening
705 am update...

after quite a chilly start, plenty of sunshine will allow for a
rapid recovery in temperatures with a dry airmass in place.

Highs should top out in the upper 60s to near 70 in many
locales. High pressure moving off the coast will result in
southerly winds... So highs will be held into the upper 50s to
the lower 60s along the immediate south coast, CAPE and islands.

Short term 6 pm this evening through 6 pm Wednesday
Tonight...

as the high shifts e, low pressure will develop near chesapeake
bay and the DELMARVA peninsula. This will cause winds to back
to SE and start to increase. Noting a good low level moisture
feed setting up with the developing SE fetch from the western
atlantic, which will moisten up the airmass.

Will see area of rain to lift NE into western areas by around
midnight, then steadily shifts E overnight. Swath of pwat
moisture on the order of 1 to 1.2 inches works across the region
with the onshore flow. Pops approach categorical across most
areas by daybreak. Best lift remains S and W of the region, so
will see light rainfall, up to 0.2 inches across the lower ct
valley by 12z.

With increasing clouds and dewpoints across the region, will see
temps only bottom out in the 40s.

Wednesday...

low pressure will hug the nj de coast during the day, keeping a
steady SE moisture feed working across the region. All models
signal a good slug of rainfall moving across, especially across
central and western areas. May see up to 0.5 to 1 inches of
rainfall, with a good shot of a bit more across the eastern
slopes of the berkshires and worcester hills with a good
upslope feed.

Also noting very good instability axis crossing the region
during the day as the low approaches with k indices to the
lower 30s, LI values of zero to -1 and total totals around 50.

Have continued to mention isolated thunder. With the convection,
could see locally heavy downpours that may produce urban and
poor drainage flooding.

Rather strong SE low level jet, on order of 55-60 kt, but some
question how much of this will mix down. May see some of this
mix down along the S coast Wed afternoon, with gusts up to 25-35
kt possible.

Long term Wednesday night through Monday
Highlights...

* scattered showers Wed night with an isolated t-storm possible
* mainly dry+seasonable Thu Fri Sat other than a few brief showers
* dry and a bit cooler Sun with moderating temperatures by mon
* unseasonably warm temps may arrive by the middle of next week
details...

Wednesday night...

the deeper moisture and forcing will push east of the region
Wednesday evening, bringing an end to the widespread rain.

However, upper level energy remaining west of the region coupled
with surface boundary will result in scattered showers
persisting well into the night. In fact... There is enough
elevated instability for an isolated thunderstorm or two. Low
temps will drop mainly into the upper 40s to around 50 and areas
of fog are also anticipated.

Thursday...

drier mid level air will be working into the region from the west
allowing for partial sunshine. Given the mild start high temps
should reach well into the 60s in most locales. Mainly dry weather
anticipated... But shortwave cold pool aloft will move across central
and northern new england. We should be on the southern fringe of its
main impacts... But given cold pool aloft a few brief showers are
possible with the greatest risk north of ma turnpike.

Friday and Saturday...

overall... Seasonable weather continues for late april. While most
of this period will feature dry weather, it is possible a wave of
low pressure brings a brief period of showers late Friday if it
tracks close enough to the coast. Greatest risk for this will be
across southeast new england. As for sat... While most of the time
will be dry a cold front may bring a few passing showers sat
afternoon and evening. Highs Fri and Sat will mainly be in the 60s.

Sunday and Monday...

dry weather behind the cold front with somewhat cooler weather sun.

Still a pleasant day though with highs mainly in the 50s to perhaps
a few locales near 60 across southeast new england. After a cool
start early Monday morning with many locales dipping down into the
30s... Highs should recover into the 60s Monday afternoon as rising
height fields begin the warming trend. In fact... Much of our long
range guidance is showing the potential for unseasonable warmth by
the middle of next week with upper level ridging building over the
eastern u.S.

Aviation 12z Tuesday through Saturday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ... Moderate to high confidence.

Today...VFR. Prevailing wind from the s-sw, increasing to
to between 10 and 15 kt by midday with a few gusts to 20 knots.

Tonight... MainlyVFR. Patches of MVFR conditions after
midnight, with local ifr possible towards daybreak across ct
valley. -ra moving across the area by around midnight across
the ct valley, then shifting E after midnight.

Wednesday... Conditions lower to ifr from w-e by midday, with
local lifr possible along S coastal terminals. SE wind gusts up
to 25-30 kt across CAPE cod and the islands Wed afternoon.

Isolated tsra. Llws along S coast Wed afternoon.

Kbos terminal... High confidence in taf. Low risk for possible
brief sea breeze late morning to midday today before s-sw winds
increase.

Kbdl terminal... High confidence in taf.

Outlook Wednesday night through Saturday ... Moderate to high
confidence.

Wednesday night: MVFR ifr conditions possible. Windy with local
gusts to 30 kt across southeast new england coast during the
evening with some llws. Sct shra, areas br, isolated tsra.

Thursday:VFR. Slight chance shra.

Thursday night:VFR.

Friday:VFR. Slight chance shra.

Friday night: mainlyVFR, with local MVFR possible. Breezy.

Slight chance shra.

Saturday:VFR. Breezy. Slight chance shra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ...

today... High confidence.

S-sw wind increasing with gusts to 20 kt. Seas 3 feet or less.

Tonight... High confidence.

Winds shift to SE and gusts up to 25 kt. Small craft advisories
have been issued. Seas build to 5 ft on the southern outer
coastal waters late. Visibility restrictions in patchy fog.

Rain developing after midnight from w-e.

Wednesday... Moderate confidence.

Se winds gusting to 25-30 kt. Low risk of gale force gusts on
the eastern outer waters Wed afternoon. Seas build to 6 to 12
feet, highest on the southern outer waters. Visibility
restrictions in areas of rain and fog. Isolated thunderstorms.

Outlook Wednesday night through Saturday ... Moderate to high
confidence.

Wednesday night: small craft advisory winds with gusts up to 30
kt and a low risk for a few 35 knot gusts early in the evening
across the southeast waters. Rough seas up to 13 ft. Chance of
rain showers, areas fog, isolated thunderstorms. Visibility 1 to
3 nm.

Thursday: low risk for small craft advisory winds with gusts up
to 25 kt. Rough seas up to 10 ft. Slight chance of rain
showers.

Thursday night: winds less than 25 kt. Rough seas up to 9 ft.

Friday: winds less than 25 kt. Seas up to 5 ft. Chance of rain
showers.

Friday night: winds less than 25 kt. Local rough seas. Chance
of rain showers.

Saturday: winds less than 25 kt. Seas up to 5 ft.

Fire weather
Dry conditions with minimum rh values of 15 to 25 percent away
from the immediate coast are expected today. South to southwest
winds will gust up to 15 to 20 mph with some brief gusts up to
25 mph possible this afternoon.

Equipment
The NOAA weather radio transmitter serving providence is out of
service due to phone line problems. The phone company has
prioritized the issues and is working to get the weather
broadcast back on the air as soon as possible. The transmitter
serving hyannis is back in service.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory from 4 am to 6 pm edt Wednesday for
anz231-232-235-237-254.

Small craft advisory from 7 am to 6 pm edt Wednesday for
anz233-234.

Small craft advisory from 9 am to 6 pm edt Wednesday for
anz236.

Small craft advisory from 8 am to 6 pm edt Wednesday for
anz250.

Small craft advisory from 3 am to 6 pm edt Wednesday for
anz255-256.

Synopsis... Evt frank
near term... Frank evt
short term... Evt
long term... Frank
aviation... Evt frank
marine... Evt frank
fire weather... Evt
equipment... Staff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 7 mi41 min 47°F 1029 hPa
44013 - BOSTON 16 NM East of Boston, MA 14 mi39 min S 7.8 G 9.7 44°F 44°F1 ft1028.9 hPa (+0.5)
44029 - Buoy A0102 - Mass. Bay/Stellwagen 23 mi85 min 43°F 43°F1 ft1028.3 hPa
FOXR1 - 8454000 - Providence, RI 44 mi47 min SSW 4.1 G 5.1 47°F 48°F1030.3 hPa
FRVM3 - 8447386 - Fall River, MA 44 mi47 min 47°F 47°F1031.1 hPa
PVDR1 44 mi41 min SSE 4.1 G 5.1 44°F 1031 hPa41°F
FRXM3 45 mi41 min 48°F 40°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi41 min SW 8 G 8.9 47°F 1030.9 hPa
44090 46 mi29 min 43°F1 ft
CPTR1 - 8452944 - Conimicut Light, RI 47 mi41 min S 5.1 G 6 44°F 49°F1030.8 hPa
IOSN3 - Isle of Shoals, NH 47 mi89 min SSW 12 G 13 44°F 1028.9 hPa33°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA7 mi35 minSW 910.00 miPartly Cloudy48°F36°F63%1029.7 hPa
East Milton, MA13 mi33 minSSW 10 mi46°F37°F71%1030.4 hPa
Norwood, Norwood Memorial Airport, MA16 mi36 minSSW 510.00 miFair50°F37°F63%1030 hPa
Beverly, Beverly Municipal Airport, MA18 mi36 minSW 610.00 miFair50°F30°F48%1029 hPa
Marshfield Airport, MA20 mi54 minSW 5 G 1010.00 miFair46°F35°F66%1030.1 hPa
Bedford, Hanscom Field, MA22 mi93 minSSW 610.00 miFair42°F30°F65%1030.4 hPa

Wind History from BOS (wind in knots)
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Last 24hrN3SE6SE9SE10E11E11E13E14E13E12SE11S11S11S11S9SW11SW11SW7SW9SW6SW7SW7SW7SW9
1 day agoNW10W11NW10
G16
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E11SE12E10E6E5S3CalmN3N6N7N8N6N4NW5NW5NW7NW4
2 days agoW11NW10
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--NW11
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N10N6N5E3N6N5NW4W5W8W8W9NW9NW8

Tide / Current Tables for Lovell Island, The Narrows, Boston Harbor, Massachusetts
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Lovell Island
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Tue -- 12:40 AM EDT     0.87 feet Low Tide
Tue -- 03:09 AM EDT     Moonset
Tue -- 05:48 AM EDT     Sunrise
Tue -- 06:56 AM EDT     9.68 feet High Tide
Tue -- 01:21 PM EDT     0.03 feet Low Tide
Tue -- 01:47 PM EDT     Moonrise
Tue -- 07:35 PM EDT     Sunset
Tue -- 07:44 PM EDT     9.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.923.65.67.69.29.79.17.65.73.41.30.10.31.53.25.37.48.898.36.84.9

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Tue -- 12:38 AM EDT     0.00 knots Slack
Tue -- 02:40 AM EDT     0.93 knots Max Flood
Tue -- 03:09 AM EDT     Moonset
Tue -- 05:49 AM EDT     Sunrise
Tue -- 06:21 AM EDT     -0.00 knots Slack
Tue -- 11:11 AM EDT     -1.05 knots Max Ebb
Tue -- 01:13 PM EDT     0.00 knots Slack
Tue -- 01:47 PM EDT     Moonrise
Tue -- 04:36 PM EDT     0.97 knots Max Flood
Tue -- 07:08 PM EDT     -0.00 knots Slack
Tue -- 07:35 PM EDT     Sunset
Tue -- 11:44 PM EDT     -1.01 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.50.30.90.90.90.70.2-0.3-0.6-0.8-1-1-0.9-0.20.60.90.90.90.60.1-0.3-0.6-0.8-0.9

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (8,2,3,4)
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Ground Weather Radar Station Boston, MA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.